Invalid auxiliary axis entry
Beckhoff · TwinCAT 2 NC
Hva betyr 42F4 ?
An auxiliary axis entry, where motion or configuration is expected, is found to be empty. This error suggests an incomplete or missing configuration for an auxiliary axis that is part of a kinematic group or coordinated motion, preventing the system from properly including it in calculations.
Vanlige årsaker
- A kinematic transformation expects a defined auxiliary axis at a specific index, but no axis is configured or assigned to that entry.
- An auxiliary axis was deleted from the system without updating the kinematic group's definition that referenced it.
- Partial configuration load or a corrupted project file where an auxiliary axis reference points to an empty or invalid slot.
- Manual configuration error, leaving an auxiliary axis entry blank or unassigned in the NC group setup despite being required.
- Mismatched software versions causing a discrepancy in how auxiliary axis entries are handled or validated by the NC runtime.
Reparasjonssteg & Sjekkliste
Klikk på steg for å spore fremgangen.
- 1
1. Access the kinematic group configuration in the engineering software (e.g., TwinCAT System Manager).
- 2
2. Identify the specific auxiliary axis entry that is reported as invalid or empty within the group definition.
- 3
3. Either assign a valid auxiliary axis to that entry or remove the empty entry if it is not truly required for the kinematic transformation.
- 4
4. Verify that the total number of auxiliary axes configured in the group matches the requirements of the kinematic definition.
- 5
5. Recompile and download the entire NC configuration to the controller, then restart the NC task for the changes to take effect.